Investigation of Thermoresponsive Nano‐Confined Polymer Brushes by AFM‐Based Force Spectroscopy
Identifieur interne : 000895 ( Main/Exploration ); précédent : 000894; suivant : 000896Investigation of Thermoresponsive Nano‐Confined Polymer Brushes by AFM‐Based Force Spectroscopy
Auteurs : Sadia Radji [France] ; Halima Alem [France] ; Sophie Demoustier-Champagne [Belgique] ; Alain M. Jonas [Belgique] ; Stéphane Cuenot [France]Source :
- Macromolecular Chemistry and Physics [ 1022-1352 ] ; 2012-03-16.
Descripteurs français
- Pascal (Inist)
- Acrylamide dérivé polymère, Acrylamide(N-isopropyl) polymère, Brosse polymère, Densité greffage, Dimension pore, Effet dimensionnel, Effet nanoconfinement, Etude expérimentale, In situ, Microscopie force atomique, Milieu confiné, Module élasticité, Nanopore, Polymère polydispersé, Polymère thermosensible, Polymérisation transfert atome, Préparation, Relation contrainte déformation, Topographie surface.
- Wicri :
- topic : Polymère.
English descriptors
- KwdEn :
- Acrylamide derivative polymer, Alcohol groups, Approach curves, Atom transfer polymerization, Atomic force microscopy, Chain length, Chains length, Chem, Colloid interface, Confined space, Contour length, Different polymerization times, Different positions, Elastic modulus, Elastic pressure, Elastic properties, Experimental study, Extreme temperatures, Force curves, Force spectroscopy experiments, Gennes, Gennes model, Gmbh, In situ, Initiator coverage, Intermolecular hydrogen bonds, Kgaa, Large pores, Macromol, Macromolecular chemistry, Mechanical properties, Membrane surface, Modulus, Nanopore, Nanopores, Osmotic pressure, Phys, Physics investigation, Pnipam, Pnipam brushes, Pnipam chains, Pnipam chains length, Polydispersed polymer, Polymer, Polymer brush, Polymer brushes, Polymer chains, Polymer degree, Polymerization, Polymerization time, Pore, Pore diameter, Pore size, Preparation, Radical polymerization, Retraction curves, Rupture lengths, Same polymerization time, Scanning electron microscopy image, Similar behavior, Size effect, Small pores, Smallest pores, Stress strain relation, Structural properties, Such brushes, Surface topography, Synthesis time, Thermoresponsive polymer brushes, Thermoresponsive polymers, Typical distance, Verlag, Verlag gmbh, Water temperature, Weinheim.
- Teeft :
- Alcohol groups, Approach curves, Chain length, Chains length, Chem, Colloid interface, Contour length, Different polymerization times, Different positions, Elastic modulus, Elastic pressure, Elastic properties, Extreme temperatures, Force curves, Force spectroscopy experiments, Gennes, Gennes model, Gmbh, Initiator coverage, Intermolecular hydrogen bonds, Kgaa, Large pores, Macromol, Macromolecular chemistry, Mechanical properties, Membrane surface, Modulus, Nanopores, Osmotic pressure, Phys, Physics investigation, Pnipam, Pnipam brushes, Pnipam chains, Pnipam chains length, Polymer, Polymer brush, Polymer brushes, Polymer chains, Polymer degree, Polymerization, Polymerization time, Pore, Pore diameter, Pore size, Radical polymerization, Retraction curves, Rupture lengths, Same polymerization time, Scanning electron microscopy image, Similar behavior, Small pores, Smallest pores, Structural properties, Such brushes, Synthesis time, Thermoresponsive polymer brushes, Thermoresponsive polymers, Typical distance, Verlag, Verlag gmbh, Water temperature, Weinheim.
Abstract
PNIPAM polymer brushes are synthesized in nanopores of track‐etched membranes. The internal structure of these nano‐confined brushes is studied by AFM force spectroscopy experiments as a function of the synthesis conditions. The approach force vs. distance profiles are fitted using the Alexander‐de Gennes model to determine the grafting density, and the worm‐like chain model is used to estimate the chain length from the retract profiles. The grafting density for brushes synthesized within 80 nm pores is ten times lower than that obtained in 330 nm pores. For the same polymerization time, the chain lengths are much lower if the synthesis is carried out in small pores. The elastic properties of the brushes are also directly related to the confinement conditions.
Url:
DOI: 10.1002/macp.201100636
Affiliations:
- Belgique, France
- Aquitaine, Grand Est, Lorraine (région), Nouvelle-Aquitaine, Pays de la Loire, Province du Brabant wallon, Région wallonne
- Louvain-la-Neuve, Nancy, Nantes, Pau
- Université catholique de Louvain, Université de Nantes
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Le document en format XML
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ENSIC, 1 rue Grandville ‐ BP451, 54001 Nancy cedex 1</wicri:regionArea><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region><settlement type="city">Nancy</settlement></placeName></affiliation></author><author><name sortKey="Demoustier Hampagne, Sophie" sort="Demoustier Hampagne, Sophie" uniqKey="Demoustier Hampagne S" first="Sophie" last="Demoustier-Champagne">Sophie Demoustier-Champagne</name><affiliation wicri:level="4"><country xml:lang="fr">Belgique</country><wicri:regionArea>Institute of Condensed Matter and Nanosciences/Bio & Soft Matter (IMCN/BSMA), Université catholique de Louvain, Place Croix du Sud, 1, B‐1348 Louvain‐la‐Neuve</wicri:regionArea><orgName type="university">Université catholique de Louvain</orgName><placeName><settlement type="city">Louvain-la-Neuve</settlement><region type="region" nuts="1">Région wallonne</region><region type="province" nuts="1">Province du Brabant wallon</region></placeName></affiliation></author><author><name sortKey="Jonas, Alain M" sort="Jonas, Alain M" uniqKey="Jonas A" first="Alain M." last="Jonas">Alain M. Jonas</name><affiliation wicri:level="4"><country xml:lang="fr">Belgique</country><wicri:regionArea>Institute of Condensed Matter and Nanosciences/Bio & Soft Matter (IMCN/BSMA), Université catholique de Louvain, Place Croix du Sud, 1, B‐1348 Louvain‐la‐Neuve</wicri:regionArea><orgName type="university">Université catholique de Louvain</orgName><placeName><settlement type="city">Louvain-la-Neuve</settlement><region type="region" nuts="1">Région wallonne</region><region type="province" nuts="1">Province du Brabant wallon</region></placeName></affiliation></author><author><name sortKey="Cuenot, Stephane" sort="Cuenot, Stephane" uniqKey="Cuenot S" first="Stéphane" last="Cuenot">Stéphane Cuenot</name><affiliation wicri:level="4"><country xml:lang="fr">France</country><wicri:regionArea>Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, 2, Rue de la Houssinière, 44322 Nantes cedex 3</wicri:regionArea><placeName><region type="region" nuts="2">Pays de la Loire</region><settlement 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from="580">580</biblScope><biblScope unit="page" to="586">586</biblScope><biblScope unit="page-count">7</biblScope><publisher>WILEY‐VCH Verlag</publisher><pubPlace>Weinheim</pubPlace><date type="published" when="2012-03-16">2012-03-16</date></imprint><idno type="ISSN">1022-1352</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1022-1352</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acrylamide derivative polymer</term><term>Alcohol groups</term><term>Approach curves</term><term>Atom transfer polymerization</term><term>Atomic force microscopy</term><term>Chain length</term><term>Chains length</term><term>Chem</term><term>Colloid interface</term><term>Confined space</term><term>Contour length</term><term>Different polymerization times</term><term>Different positions</term><term>Elastic modulus</term><term>Elastic pressure</term><term>Elastic properties</term><term>Experimental study</term><term>Extreme temperatures</term><term>Force curves</term><term>Force spectroscopy experiments</term><term>Gennes</term><term>Gennes model</term><term>Gmbh</term><term>In situ</term><term>Initiator coverage</term><term>Intermolecular hydrogen bonds</term><term>Kgaa</term><term>Large pores</term><term>Macromol</term><term>Macromolecular chemistry</term><term>Mechanical properties</term><term>Membrane surface</term><term>Modulus</term><term>Nanopore</term><term>Nanopores</term><term>Osmotic pressure</term><term>Phys</term><term>Physics investigation</term><term>Pnipam</term><term>Pnipam brushes</term><term>Pnipam chains</term><term>Pnipam chains length</term><term>Polydispersed polymer</term><term>Polymer</term><term>Polymer brush</term><term>Polymer brushes</term><term>Polymer chains</term><term>Polymer degree</term><term>Polymerization</term><term>Polymerization time</term><term>Pore</term><term>Pore diameter</term><term>Pore size</term><term>Preparation</term><term>Radical polymerization</term><term>Retraction curves</term><term>Rupture lengths</term><term>Same polymerization time</term><term>Scanning electron microscopy image</term><term>Similar behavior</term><term>Size effect</term><term>Small pores</term><term>Smallest pores</term><term>Stress strain relation</term><term>Structural properties</term><term>Such brushes</term><term>Surface topography</term><term>Synthesis time</term><term>Thermoresponsive polymer brushes</term><term>Thermoresponsive polymers</term><term>Typical distance</term><term>Verlag</term><term>Verlag gmbh</term><term>Water temperature</term><term>Weinheim</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Acrylamide dérivé polymère</term><term>Acrylamide(N-isopropyl) polymère</term><term>Brosse polymère</term><term>Densité greffage</term><term>Dimension pore</term><term>Effet dimensionnel</term><term>Effet nanoconfinement</term><term>Etude expérimentale</term><term>In situ</term><term>Microscopie force atomique</term><term>Milieu confiné</term><term>Module élasticité</term><term>Nanopore</term><term>Polymère polydispersé</term><term>Polymère thermosensible</term><term>Polymérisation transfert atome</term><term>Préparation</term><term>Relation contrainte déformation</term><term>Topographie surface</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Alcohol groups</term><term>Approach curves</term><term>Chain length</term><term>Chains length</term><term>Chem</term><term>Colloid interface</term><term>Contour length</term><term>Different polymerization times</term><term>Different positions</term><term>Elastic modulus</term><term>Elastic pressure</term><term>Elastic properties</term><term>Extreme temperatures</term><term>Force curves</term><term>Force spectroscopy experiments</term><term>Gennes</term><term>Gennes model</term><term>Gmbh</term><term>Initiator coverage</term><term>Intermolecular hydrogen bonds</term><term>Kgaa</term><term>Large pores</term><term>Macromol</term><term>Macromolecular chemistry</term><term>Mechanical properties</term><term>Membrane surface</term><term>Modulus</term><term>Nanopores</term><term>Osmotic pressure</term><term>Phys</term><term>Physics investigation</term><term>Pnipam</term><term>Pnipam brushes</term><term>Pnipam chains</term><term>Pnipam chains length</term><term>Polymer</term><term>Polymer brush</term><term>Polymer brushes</term><term>Polymer chains</term><term>Polymer degree</term><term>Polymerization</term><term>Polymerization time</term><term>Pore</term><term>Pore diameter</term><term>Pore size</term><term>Radical polymerization</term><term>Retraction curves</term><term>Rupture lengths</term><term>Same polymerization time</term><term>Scanning electron microscopy image</term><term>Similar behavior</term><term>Small pores</term><term>Smallest pores</term><term>Structural properties</term><term>Such brushes</term><term>Synthesis time</term><term>Thermoresponsive polymer brushes</term><term>Thermoresponsive polymers</term><term>Typical distance</term><term>Verlag</term><term>Verlag gmbh</term><term>Water temperature</term><term>Weinheim</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Polymère</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">PNIPAM polymer brushes are synthesized in nanopores of track‐etched membranes. The internal structure of these nano‐confined brushes is studied by AFM force spectroscopy experiments as a function of the synthesis conditions. The approach force vs. distance profiles are fitted using the Alexander‐de Gennes model to determine the grafting density, and the worm‐like chain model is used to estimate the chain length from the retract profiles. The grafting density for brushes synthesized within 80 nm pores is ten times lower than that obtained in 330 nm pores. For the same polymerization time, the chain lengths are much lower if the synthesis is carried out in small pores. The elastic properties of the brushes are also directly related to the confinement conditions.</div></front></TEI><affiliations><list><country><li>Belgique</li><li>France</li></country><region><li>Aquitaine</li><li>Grand Est</li><li>Lorraine (région)</li><li>Nouvelle-Aquitaine</li><li>Pays de la Loire</li><li>Province du Brabant wallon</li><li>Région wallonne</li></region><settlement><li>Louvain-la-Neuve</li><li>Nancy</li><li>Nantes</li><li>Pau</li></settlement><orgName><li>Université catholique de Louvain</li><li>Université de Nantes</li></orgName></list><tree><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Radji, Sadia" sort="Radji, Sadia" uniqKey="Radji S" first="Sadia" last="Radji">Sadia Radji</name></region><name sortKey="Alem, Halima" sort="Alem, Halima" uniqKey="Alem H" first="Halima" last="Alem">Halima Alem</name><name sortKey="Cuenot, Stephane" sort="Cuenot, Stephane" uniqKey="Cuenot S" first="Stéphane" last="Cuenot">Stéphane Cuenot</name><name sortKey="Cuenot, Stephane" sort="Cuenot, Stephane" uniqKey="Cuenot S" first="Stéphane" last="Cuenot">Stéphane Cuenot</name><name sortKey="Cuenot, Stephane" sort="Cuenot, Stephane" uniqKey="Cuenot S" first="Stéphane" last="Cuenot">Stéphane Cuenot</name></country><country name="Belgique"><region name="Région wallonne"><name sortKey="Demoustier Hampagne, Sophie" sort="Demoustier Hampagne, Sophie" uniqKey="Demoustier Hampagne S" first="Sophie" last="Demoustier-Champagne">Sophie Demoustier-Champagne</name></region><name sortKey="Jonas, Alain M" sort="Jonas, Alain M" uniqKey="Jonas A" first="Alain M." last="Jonas">Alain M. 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